
.nav{
			font-family: SIMHEI;
			height: 70px;
			width: 100%;
			float: right;
			line-height: 70px;
			z-index: 1;
			position: fixed;
			background-color: rgba(255,255,255,0.9);
			top: 0;
		}
.nav li{
		list-style: none;
			float: left;
			margin-left: 40px;
		}
.nav a{
		text-decoration: none;
		font-size: 20px;
		color: black;
}
.btn{
		position: absolute;
	    left: 730px;
	    top: 800px;
}
#wrapper {
    	height: 930px;
    	/* width: 700px; */
    	position: relative;
    	overflow: hidden;
    	background-image: url(/images/lulu_window.webp);
		margin-top: 89px;
		 height: 850px;
    	color: #ffffff82;
    	font-size: 20px;
    	text-shadow: 1px 1px #000;
    }

    .right {
    	position: absolute;
    	visibility: hidden;
    	white-space: nowrap;
    	transform: translateX(1900px);
    }

    .left {
    	position: absolute;
    	white-space: nowrap;
    	user-select: none;
    	transition: transform 7s linear;
    	/* 时间相同 越长的弹幕滑动距离越长 所以越快~ */
    }

    input {
    	/* position: absolute;
    	bottom: 10px; */
    	left: 150px;
    	width: 300px;
    	height: 26px;
    }

    button {
    	/* position: absolute;
    	bottom: 8px; */
    	left: 476px;
    	width: 100px;
    	height: 38px;
    	border-radius: 10px;
    	font-size: 16px;
    }
